Guttaviridae

Guttaviridae is a family of viruses. Archaea serve as natural hosts. There are two genera in this family, containing one species each.[1][2] The name is derived from the Latin gutta, meaning 'droplet'.[3][4][5]

Guttaviridae
Virus classification Edit this classification
(unranked): Virus
Family: Guttaviridae
Genera

Taxonomy

The family currently contains one genera and species:[2]

Genus Alphaguttavirus and species Sulfolobus newzealandicus droplet-shaped virus were removed in ICTV version 2021.[6]

Structure

Viruses in the family Guttaviridae are enveloped. The diameter is around 70–95 nm, with a length of 110–185 nm. Genomes are circular, around 20kb in length.[2][3] The virons consist of a coat, a core, a nucleocapsid, and projecting fibers at the pointed end. The surface of the virion has a beehive-like ribbed surface pattern with protrusions that are densely covered by a 'beard' of long fibers at its pointed end. The genome is extremely heavily methylated.

Life cycle

DNA-templated transcription is the method of transcription. Archaea serve as the natural host.[2][3]

References
  1. Prangishvili, D; Mochizuki, T; Krupovic, M; ICTV Report Consortium (8 February 2018). "ICTV Virus Taxonomy Profile: Guttaviridae". The Journal of General Virology. 99 (3): 290–291. doi:10.1099/jgv.0.001027. PMC 5882108. PMID 29458561.
  2. "ICTV Online Report Guttaviridae".
  3. "Viral Zone". ExPASy. Archived from the original on 17 June 2015. Retrieved 15 June 2015.
  4. Mochizuki T, Sako Y, Prangishvili D (2011) Provirus induction in hyperthermophilic Archaea: Characterization of Aeropyrum pernix spindle-shaped virus 1 and Aeropyrum pernix ovoid virus 1. J Bacteriol 193(19):5412–5419
  5. Arnold HP, Ziese U and Zillig W (2000). SNDV, a novel virus of the extremely thermophilic and acidophilic archaeon Sulfolobus. Virology 272:409–16.
  6. "Taxon Details: alphaguttavirus #2021.004A.R.Alphaguttavirus_abolish". International Committee on Taxonomy of Viruses (ICTV). Retrieved 15 August 2023.
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